I honestly think it's just a glitch and I'm sure it'll be resolved in a couple patch releases.
Speaking of patches, (you need an account to see links) from their June 27th one.
I'm still over here patiently waiting for Blizzard to prioritize bringing back pets to collect my gold for me.. and let us trade horsie skins already or at least put in some logic to make it so that once you collect a mount/trophy/saddle it removes itself from the circulation.